Bad packaging.. It is heavy compared to other mid-high end badminton shoes. Comparison: Solarflash and SolarStrike don't seem very different... I would say Solarflash is a little lighter than SolarStrike.. The mesh material in the outer surface is nice.. Bottom is very good.. I assume both of them have the same bottom structure.. Gives very good comfort while moving around the court.. Give some time to get used to it.. Aspects to consider in a badminton shoe would be the size, shock absorber...